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Field service basics

What is field service management?

Field service management (FSM) is how a business plans, sends and tracks work done at a customer's site rather than on its own premises: taking the request, scheduling and dispatching the right technician with the right parts, capturing the work on site, and invoicing and following up. FSM software is the system that runs those steps in one place, with an office side for planning and billing and a mobile app for the people in the field. It is used by trades such as HVAC, plumbing and electrical, by facilities and maintenance teams, and by manufacturers and utilities that install and service equipment.

  • FSM covers work done off your own property: installs, repairs, maintenance and inspections.
  • The core loop is request, schedule and dispatch, on site, invoice, follow-up.
  • FSM software has two halves: an office console and a technician mobile app.
  • A CRM manages the customer relationship; FSM manages the work done for them.
  • You need FSM software when spreadsheets, calls and paper can no longer show who is where and what is unbilled.

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This page explains the term. If you are already choosing a system, the buyer's guide to field service management software is the page to read next.

Facts checked as of November 2026. Sources at the end of the page.

Definition

Field service management, defined

IBM defines field service management as the coordination of a company's resources, including employees and equipment, in work activities and operations off company property. Salesforce puts it as the system organizations use to coordinate resources to deliver service outside of their company property. TechTarget calls it a system of managing off-site workers and the resources they require to do their jobs efficiently, and notes that it began as phone calls and paperwork between technicians, customers and the office.

Oracle describes the work itself: field service is any work performed on your products at a customer's site instead of your own, typically dispatching employees or contractors to install, repair or maintain equipment or systems, and those workers can be employees or contractors.

Put simply: field service management is everything between 'a customer needs something done at their site' and 'the job is done, recorded and paid'. FSM software is the tool that runs it. For the buying side (features, prices, how to choose), see the field service management software guide. For what changes when AI agents do part of the office work, see what is AI field service management.

Step by step

How a field service job runs, from request to follow-up

Microsoft's Field Service documentation describes the same shape for break-fix work: a customer reports an issue, a customer service agent creates a work order, and a dispatcher schedules a technician to resolve it. Every FSM process is a version of these steps.

1. The request comes in

By phone, email, a web form, a customer portal or a client's own system. It becomes a job (often called a work order or ticket) with the customer, the site address, the equipment if known, the problem and a priority.

2. The job is scheduled and dispatched

Someone, or the software, picks a technician by location, skills or certifications, availability and the parts on their van, and puts the visit on the schedule. The technician gets the job on their phone and the customer gets an arrival window.

3. The work is done on site

The technician checks in, follows the checklist for that job type, records readings, photos, parts used and time, and gets a signature. If more work is found, a quote can be raised on the spot.

4. The job is closed and invoiced

The completed job produces the service report for the customer and the invoice, priced from the time and parts recorded or from a fixed price, and it syncs to the accounting system.

5. Follow-up and the next visit

Unpaid invoices are chased, open quotes are followed up, and for equipment on a maintenance contract the next preventive visit is created. Microsoft lists preventive work as its own model: the system generates work orders at set intervals under an agreement.

Who uses it

Who uses field service management

Type of businessTypical field workWhat matters most
Trade contractors (HVAC, plumbing, electrical, pest, cleaning)Repairs, installs, maintenance plans, emergency call-outsFast scheduling, quoting and invoicing on site, maintenance agreements
Commercial and facilities service providersWork orders from property managers and multi-site clients, PM visits, inspectionsSLAs, not-to-exceed limits, per-client rules, proof of work, subcontractors
Equipment manufacturers and distributorsInstallation, warranty repairs and service contracts on the products they soldAsset history by serial number, warranty status, spare parts
Utilities, telecoms and energyNetwork repairs, meter work, inspections at remote assetsSafety checks, offline working, large crews, compliance records
In-house maintenance teamsMaintaining a company's own sites, stores or fleetsRequests from staff, PM schedules, asset records (often overlapping with CMMS)

Oracle names manufacturing, high tech and healthcare technology as fields where field service is common, and Microsoft's own examples include utilities, in-home health care and equipment maintenance.

The software

What field service management software does

IBM's summary is that FSM software helps managers and technicians process job orders, automate scheduling and dispatch, track service and repair tasks, manage service contracts and collect payment. In practice that breaks into these parts:

Jobs and work orders

One record per job with its customer, site, equipment, status, notes, photos and history, moving through stages you define.

Scheduling and dispatch

A board or calendar of who is doing what, with drive times and skills, so jobs go to the right person and changes are made in one place.

Technician mobile app

The day's jobs on the phone, with checklists, photos, signatures, time and parts, ideally working without signal.

Quotes, invoices and payments

Estimates built on site or in the office, invoices from completed jobs, card or link payments, and a sync to accounting.

Contracts, assets and maintenance

Service agreements that create recurring visits, and a record of each piece of equipment at each site with its service history.

Inventory

Stock in warehouses and on vans, parts costed on the job, and purchase orders.

Customer communication and portals

Confirmations, arrival texts, reports sent after the visit, and a portal where customers request work and pay.

Reporting

Jobs completed, first-time fix, revenue and margin per job, overdue work and SLA performance.

How it differs

Field service management vs CRM, ERP and CMMS

The four overlap, and vendors in each category reach into the others, so the useful question is which one holds the job.

SystemWhat it is built aroundWhere it overlaps with FSM
FSM (field service management)The job at a customer's site: who goes, when, what was done, what it cost and what to billThe core of this page
CRM (customer relationship management)The customer and the sale: contacts, leads, opportunities, marketing and support casesCustomer records, service requests. Salesforce sells its field service product on top of its CRM so both share one record.
ERP (enterprise resource planning)The whole company's back office: accounting, finance, procurement, supply chain, manufacturingInvoices, inventory and purchasing. Oracle describes ERP as managing day-to-day activities such as accounting, procurement, project management and supply chain.
CMMS (computerized maintenance management system)Maintaining your own assets: work orders, spare parts and asset health for plant and facilitiesWork orders, PM schedules and asset history. IBM describes CMMS as automating work orders, managing spare parts and monitoring asset health.

Rule of thumb: if the work is done for paying customers at their sites, with quotes, invoices and arrival times, it is field service. If it is done on your own equipment by your own team with no customer invoice, it is closer to a CMMS. Many service contractors that maintain equipment for customers need both halves, which is what our page on maintenance management software covers.

When it's time

Signs you need field service management software

You probably need it if

  • Nobody can say where every technician is and what they are working on without phoning round.
  • Jobs are finished but not invoiced for days, or not at all, because the paperwork has not come back.
  • The schedule lives on a whiteboard, a shared calendar or one dispatcher's head.
  • Maintenance visits are missed because the contract is in a spreadsheet nobody checks.
  • The same customer and job details are typed into three tools: the quote app, the calendar and the accounts.
  • A customer asks what was done on their equipment last year and the answer is in a paper folder.

You may not need it yet if

  • You are one or two people and every job is booked and done the same day.
  • Your work happens on your own premises and customers come to you (that is a shop or workshop system).
  • You only need a shared calendar and an invoicing tool, and nothing is being missed.

Next step

Where Fieldproxy fits

Fieldproxy is field service management software that is set up around how a business already runs: its own job types, stages, forms, approvals and pricing rules, rather than a fixed template. It covers the whole loop on this page, with a technician app that works offline, and AI agents that take calls and messages, draft the schedule, chase missing paperwork and draft invoices, with a person approving every change. It is live within a day and priced at one price per company with unlimited users.

It is not the right pick for every business. A small residential crew with a standard process will usually be well served by a simpler, cheaper tool. The field service management software guide compares the main types and who each suits.

How switching works

How switching to Fieldproxy works

We move your data over and set the system up to the way you already work. Fieldproxy replaces the old tool; it does not run alongside it.

  1. Map your job from request to payment

    Walk us through one normal job and one awkward one: how the request arrives, who schedules it, what the technician records and how it is billed.

  2. We set up your process

    Your job types, stages, checklists and pricing are configured to match, so the demo shows your work rather than a template.

  3. Bring your lists across

    Customers, sites, equipment, open jobs and contracts are imported from your spreadsheets or current tool.

  4. Go live

    The office works from the board, technicians install the app, and you are live within a day.
Field service management software: the buyer's guideWhat is AI field service management?How long implementation takesPricing

FAQ

Questions people ask

What does FSM stand for?
FSM stands for field service management: managing work that is done at a customer's site, such as installs, repairs, maintenance and inspections. FSM software is the system used to run it.
What is an example of field service management?
An HVAC company gets a no-cooling call, books the nearest qualified technician for the afternoon, the technician diagnoses a failed capacitor, replaces it from van stock, takes photos and a signature, and the invoice is sent before they leave. Every step of that is field service management.
Is field service management the same as a CRM?
No. A CRM is built around the customer and the sale; field service management is built around the job done at the customer's site. Many businesses use both, or use FSM software that includes the customer record so there is one system.
What is the difference between FSM and CMMS?
CMMS software is built for maintaining your own assets, such as a plant or a building portfolio. FSM software is built for doing work for customers at their sites, with scheduling, quotes and invoices. Service contractors that maintain customers' equipment often need features from both.
What is the difference between field service management and mobile workforce management?
They overlap heavily. Oracle frames mobile workforce management as optimizing the people and the schedule, and field service management as optimizing the installation, maintenance and repair of the products themselves. Most FSM software today includes the scheduling and mobile app that mobile workforce management describes.
What is AI field service management?
It is field service management where AI agents do part of the office work, such as answering calls, drafting the schedule, reading work orders from emails and chasing unpaid invoices, with a person approving the changes. Fieldproxy's page on what AI field service management is covers it in full.
How long does it take to set up field service management software?
It ranges from same day for simple apps to several months for large enterprise platforms. Fieldproxy is live within a day; our implementation guide lists published timelines by vendor.

Sources

Competitor details on this page come from the vendors' own pages and documentation, checked as of November 2026. Plans and prices change, so check the vendor's current page before you decide.

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